21396793

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 25472160

約数和(自身を除く): 4075367

約数列:

[1, 11, 19, 41, 121, 209, 227, 451, 779, 2299, 2497, 4313, 4961, 8569, 9307, 27467, 47443, 94259, 102377, 176833, 521873, 1126147, 1945163, 21396793]

約数ペア:

[(1, 21396793), (11, 1945163), (19, 1126147), (41, 521873), (121, 176833), (209, 102377), (227, 94259), (451, 47443), (779, 27467), (2299, 9307), (2497, 8569), (4313, 4961)]